39D

3CX Phone Systems

Unified business comms with 3CX Phone Systems

Upgrade to a modern, flexible phone system that combines voice, chat, video and mobile - all managed by 39D for seamless communication across devices and locations.

How

3CX Phone Systems

benefits your business

Unified communications in one platform

Voice, video, instant messaging and mobile extensions come together — reducing complexity and improving team collaboration.

Cost-efficient telecoms

Reduce hardware and call costs with SIP trunks, cloud hosting and an easier user licence model.

Flexible & scalable

Start small, grow seamlessly — 3CX supports from small teams to large multi-site organisations without needing full system replacement.

Easy integration & mobility

Works with the devices you use already and integrates with CRMs, Microsoft 365 and more — giving your team flexibility and continuity.

3CX Phone Systems

Your business calls, chats and meetings deserve more than a legacy phone system.

With 3CX, we deliver a communication platform that works how your team works—on desktop, mobile or wherever you are.

From desk phones and softphones to a full mobile app, 3CX gives you voice, video, messaging and voicemail in one place. It’s scalable, cost-effective and simple to manage — whether you have ten users or one hundred. At 39D we handle deployment, integration and ongoing support so your communications stay clear, reliable and aligned with your business.

What is 3CX Phone Systems?

3CX is a software-based PBX that brings together voice, video and messaging under one roof. It replaces traditional phone systems by using SIP protocol and can be hosted in the cloud or on-premises.

At 39D we customise your 3CX implementation to fit your business: from number porting and handset selection to mobile app deployment and user training. We also offer full support, so you’re not managing the telecoms infrastructure alone.

3CX is ideal for:

  • Businesses moving away from legacy phones or ISDN/BT lines
  • Teams working across multiple sites, home/office or needing mobile access
  • Organisations wanting richer communication features (video conferencing, chat, mobile app)
  • Companies looking to reduce telecoms costs and simplify licensing

Frequently
Asked
Questions

If you have questions about our services or working together, explore our FAQs. If you don't find your answer, please reach out; We're here to help!
Contact Us

Answer

Will 3CX work with our existing phone numbers and handsets?

Yes — we can port your current numbers and support compatible SIP handsets. If needed, we help select and deploy new devices.

Can users work from home or on mobile with 3CX?

Absolutely. 3CX includes mobile apps, softphones and web clients so your team can stay connected wherever they are.

Do we need a new internet connection for 3CX?

You’ll need reliable internet with sufficient upload/download for voice and video traffic. If your connection needs upgrading, we can assess and support that too.

Is call recording and CRM integration supported?

Yes. 3CX supports call recording, call analytics, and integrates with many CRMs and business systems — helping you track, manage and improve customer interactions.

What licence model does 3CX use?

Unlike many systems that charge per user per month, 3CX uses a concurrent-call model — helping you save cost as your team grows.

Contact Us

Let’s Make Your
IT Simple Again
Reliable technology shouldn’t be a luxury — it should just work. Whether you’re looking for ongoing managed support or need help getting your systems back on track, we’re here to make IT stress-free and dependable.

Talk to our team today and discover how 39D can keep your business running smoothly, securely and without interruption.
01279 800 039
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Our clients say...

Cannot recommend this company highly enough. Matthew talked me through an IT issue I was having patiently and professionally and all was corrected within just a few minutes. I am a total technophobe so was worried I wouldn't understand what I was being told, I was totally wrong. Clear, precise and in terms even I understood. Would definately use this company again. Five star service.
Tina Flowers
39D IT Support is so useful for me in my everyday life running a small business. I can call any time to ask for help with my computer systems and someone knowledgeable will answer politely and efficiently. Their service, in my opinion, is second to none. John
John Galloway
We've been using 39D for IT Support for 2.5 years now and they've been absolutely brilliant. They do everything from setting up new equipment, troubleshooting an issue, or offering advice on the best solutions for my business and they're always professional and reliable. Would definitely recommend them to anyone looking for solid IT support.
Aston Craddock
Since 39d changed our phones over our experience has been a lot better, easier access to the phone book from my pc as well as the phone. Easy to store numbers in a click. Pick up and transfer are much easier too.the whole service is a lot better than it was before. Not forgetting the staff are helpful and efficient and polite at all times ????
Sarah Boem
Matthew and his team have been solving our problems here at Rainbow Estate Agents successfully for the past 5 years or so. No reason to complain and happy to recommend
Alex Smith
This company goes above and beyond to support its clients. Being one of them i have never experienced a more robust support when it comes to IT infrastructure. The advice they give is honest and trustworthy and the speed in which they deliver the ongoing support is amazing. I would highly recommend anyone who is not happy with their current arrangements to contact the team at 39D. If you are yet to invest in protecting your businesses online presence, then make this company your first point of contact.
Sean Hewitt
We have just moved to 39D and I have been VERY impressed with the service we are receiving. Considering we had a huge data merge to undertake they have been patient, quick and very knowledgeable. In particular Matthew, Jake and Chloe have been extremely helpful. We are looking forward to their continued service and expertise.
Tracy Askew
Having a major breakdown on sending and receiving emails. Which is a clearly a problem when running your own business. Also with numerous issues with my IT, I finally decided to try 39d. I was a little apprehensive - I had paid two different companies to try and rectify my problems. Within a morning my emails and IT had been resolved I have now signed up to D39. I can�t tell you how relieved to know that should I have a problem I just have to call D39 and they are there at the end of the phone. Matthew explains in terms I can understand. Highly recommended.
Carol Byatt
Still not sure?
Give us a call now on 01279 800 039